ArticleGenome biology and evolution2020
Rampant Nuclear Transfer and Substitutions of Plastid Genes in Passiflora.
Article in Genome biology and evolution, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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24 citing papers in PubMed, 39 citations in OpenAlex.
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- Plastome evolution at the edge: structural rearrangements, IR expansion, and gene flux in Hypericaceae (Malpighiales).BMC plant biology · 2025Article
- Sequencing of mitochondrial genome of Neolamarckia macrophylla uncovers divergent structure in genus Neolamarckia.BMC genomics · 2025Article
- Phylogenomic Analyses and DNA Barcoding Development Within Moraceae: Insights Into Genomic Features, Mutational Hotspots, and Adaptive Evolution.Ecology and evolution · 2025Article
- Plastid phylogenomics of the parietal clade of Malpighiales: ancestral genome synteny and congruent signal across exons, introns and spacers in support of Salicaceae relationships.Annals of botany · 2025Article
- Pan-Plastome Analysis Reveals the Genetic Diversity and Genetic Divergence ofInternational journal of molecular sciences · 2025Article
- Beyond conservation: the landscape of chloroplast genome rearrangements in angiosperms.The New phytologist · 2025Review
- Comparative chloroplast genomics provides insights into the phylogenetic relationships and evolutionary history for Actinidia species.Scientific reports · 2025Article
- Dynamic changes in the plastid and mitochondrial genomes of the angiosperm Corydalis pauciovulata (Papaveraceae).BMC plant biology · 2024Article
- Variations and reduction of plastome are associated with the evolution of parasitism in Convolvulaceae.Plant molecular biology · 2024Article
- The complete chloroplast genome ofMitochondrial DNA. Part B, Resources · 2024Article
- Structural Diversities and Phylogenetic Signals in Plastomes of the Early-Divergent Angiosperms: A Case Study in Saxifragales.Plants (Basel, Switzerland) · 2022Article
- Application of chloroplast genome in the identification of Traditional Chinese Medicine Viola philippica.BMC genomics · 2022Article
- Gene loss, genome rearrangement, and accelerated substitution rates in plastid genome of Hypericum ascyron (Hypericaceae).BMC plant biology · 2022Article
- Comparative Analysis and Phylogenetic Relationships ofBiology · 2022Article
- Phylogenomic and comparative analyses of Coffeeae alliance (Rubiaceae): deep insights into phylogenetic relationships and plastome evolution.BMC plant biology · 2022Article
- Extensive genomic rearrangements mediated by repetitive sequences in plastomes of Medicago and its relatives.BMC plant biology · 2021Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Gene losses in plastid genomes (plastomes) are often accompanied by functional transfer to the nucleus or substitution of an alternative nuclear-encoded gene. Despite the highly conserved gene content in plastomes of photosynthetic land plants, recent gene loss events have been documented in several disparate angiosperm clades. Among these lineages, Passiflora lacks several essential ribosomal genes, rps7, rps16, rpl20, rpl22, and rpl32, the two largest plastid genes, ycf1 and ycf2, and has a highly divergent rpoA. Comparative transcriptome analyses were performed to determine the fate of the missing genes in Passiflora. Putative functional transfers of rps7, rpl22, and rpl32 to nucleus were detected, with the nuclear transfer of rps7, representing a novel event in angiosperms. Plastid-encoded rps7 was transferred into the intron of a nuclear-encoded plastid-targeted thioredoxin m-type gene, acquiring its plastid transit peptide (TP). Plastid rpl20 likely experienced a novel substitution by a duplicated, nuclear-encoded mitochondrial-targeted rpl20 that has a similar gene structure. Additionally, among rosids, evidence for a third independent transfer of rpl22 in Passiflora was detected that gained a TP from a nuclear gene containing an organelle RNA recognition motif. Nuclear transcripts representing rpoA, ycf1, and ycf2 were not detected. Further analyses suggest that the divergent rpoA remains functional and that the gene is under positive or purifying selection in different clades. Comparative analyses indicate that alternative translocon and motor protein complexes may have substituted for the loss of ycf1 and ycf2 in Passiflora.
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